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liviabruni2015
@liviabruni2015
July 2022
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Me ajudem é para amanhã e vale nota dou 25 pontos!!
-x²+9x+36=0
Precisa de baskara e delta, obg desde já!!
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hellenmartins1
Verified answer
Delta= b²- 4. a. c
9² - 4. (-1). 36
81 + 144
delta = 225
-b +- raiz de delta/ 2.a
x1 =-9 + 15 / -2 = -3
x2= -9 - 15 / -2 = 12
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Liviabruni2015
December 2019 | 0 Respostas
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Verified answer
Delta= b²- 4. a. c9² - 4. (-1). 36
81 + 144
delta = 225
-b +- raiz de delta/ 2.a
x1 =-9 + 15 / -2 = -3
x2= -9 - 15 / -2 = 12